I have a question to ask. Why i can only send 2 times of data to arduino? After that two times, then it could not work already. I wil attach my code. Can u help me to verify? Need your help urgently. Thanks in advanced. Hope to hear from you.

Hey Eric. Great work on this tutorial. It has been so helpful, and I have been using it to help me with a group project. However, the changes I would like to make to the code is that I don't want to send to the Arduino the string that includes the typed text, and the bytes sent. I only want to send just the text without saying the bytes received. What do I edit?

Thanks Eric for your quick response. I recognized that I really didn't have deal with that part and just leave it as is. I have edited your code to be a voice to text input for several catch phrases and then send it by 'Send' button via bluetooth to an RN42 Bluetooth module and Arduino Uno. But with my arduino code and app, the Arduino Serial monitor is receiving rubbish, like "yy yy pkpkpkpkjpk", each time i send the text. Below will be the MainActivity code for app showing the send button part, the speech input part, and then after will be the code for the Arduino.